Particle size analyzer



FIG. 1 is a front elevational view of a particle size analyzer showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view;

FIG. 6 is a bottom plan view. 

The ornamental design for a particle size analyzer, substantially as shown and described. 